/*

 * Licensed to the Apache Software Foundation (ASF) under one

 * or more contributor license agreements.  See the NOTICE file

 * distributed with this work for additional information

 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

 * "License"); you may not use this file except in compliance

 * with the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.bff.gaia.unified.sdk.nexmark.queries;



import com.bff.gaia.unified.sdk.nexmark.NexmarkConfiguration;

import com.bff.gaia.unified.sdk.nexmark.model.AuctionBid;

import com.bff.gaia.unified.sdk.nexmark.model.Event;

import com.bff.gaia.unified.sdk.transforms.Filter;

import com.bff.gaia.unified.sdk.values.PCollection;



/**

 * Query "9", 'Winning bids'. Select just the winning bids. Not in original NEXMark suite, but handy

 * for testing. See {@link WinningBids} for the details.

 */

public class Query9 extends NexmarkQueryTransform<AuctionBid> {

  private final NexmarkConfiguration configuration;



  public Query9(NexmarkConfiguration configuration) {

    super("Query9");

    this.configuration = configuration;

  }



  @Override

  public PCollection<AuctionBid> expand(PCollection<Event> events) {

    return events.apply(Filter.by(new AuctionOrBid())).apply(new WinningBids(name, configuration));

  }

}